Tallin (EST).

Imagine free public transport. Would you leave your car at home? For many years, public transport in Lisbon and Porto has been both declining and running at a loss. The system is being used to only just over 22% of capacity. In contrast, private use of cars has risen fivefold in the past 12 years. Serious problems are the result: endless traffic jams, a shortfall of at least 18,000 parking spaces in Lisbon, more than three times the number of road traffic accidents and a huge burden of noise and exhaust fumes on local residents. The idea of free transport has already become a reality. In Tallinn, the capital of Estonia, all locals now travel for free by bus and tram. And since 1996, the same has applied in Hasselt, Belgium.

Mais informações: http://en.wikipedia.org/wiki/Public_transport_in_Tallinn